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package chapter13;

import java.time.LocalDate;

import java.util.HashMap;

import java.util.Map;

import static java.lang.System.out;

import static java.time.temporal.ChronoUnit.DAYS;

/**

* 使用新Api打印日历

*/

public class NewTimeDemo {

public static void main(String[] args) {

LocalDate nowDate = LocalDate.now();

Map<Integer, String> weekStr = new HashMap<>();

weekStr.put(0, "日");

weekStr.put(1, "一");

weekStr.put(2, "二");

weekStr.put(3, "三");

weekStr.put(4, "四");

weekStr.put(5, "五");

weekStr.put(6, "六");

System.out.printf("%d-%d-%d 星期%s\n",

nowDate.getYear(),

nowDate.getMonth().getValue(),

nowDate.getDayOfMonth(),

weekStr.get(nowDate.getDayOfWeek().getValue()));

weekStr.values().forEach((val) -> out.print(val + "\t"));

out.println();

LocalDate firstDate = nowDate.minus(nowDate.getDayOfMonth()-1, DAYS);

int lastDate = nowDate.lengthOfMonth();

int firstDayInMonth = firstDate.getDayOfMonth();

LocalDate curDate = firstDate;

for (int i = 1; i <= lastDate; i++) {

curDate = curDate.plus(1, DAYS);

if (i == 1) {

for (int j = 0; j < firstDayInMonth; j++) {

System.out.print("\t");

}

}

out.print(i + "\t");

if (curDate.getDayOfWeek().getValue() == 7) {

out.println();

}

}

}

}